Latest quake highlights Los Angeles seismic danger

(AP) -- The latest earthquake to hit the nation's second-largest city was a garden-variety temblor by California standards, rumbling through on a Sunday evening when most residents were home eating dinner or watching TV. ...

Levees cannot fully eliminate risk of flooding to New Orleans

Levees and floodwalls surrounding New Orleans -- no matter how large or sturdy -- cannot provide absolute protection against overtopping or failure in extreme events, says a new report by the National Academy of Engineering ...

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